Finding the Fourth Proportional to 392,205.55, 541,220.91 and 220,107.44
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Solution
The fourth proportional to 392,205.55, 541,220.91 and 220,107.44 is: 303,735.50
Step by Step Solution
- Step 1: Write the proportion equation
392,205.55 : 541,220.91 = 220,107.44 : x - Step 2: Convert to fraction form
392,205.55/541,220.91 = 220,107.44/x - Step 3: Cross multiply
392,205.55x = 541,220.91 × 220,107.44 - Step 4: Simplify right side
392,205.55x = 119,126,747,874.03 - Step 5: Solve for x
x = 119,126,747,874.03/392,205.55 - Step 6: Final answer
x = 303,735.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.